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142441129 = 672125987
BaseRepresentation
bin10000111110101…
…11101010101001
3100221000202111101
420133113222221
5242431104004
622045001401
73346505155
oct1037275251
9327022441
10142441129
117344a146
123b853261
13236834bc
1414cbc065
15c789ba4
hex87d7aa9

142441129 has 4 divisors (see below), whose sum is σ = 144567184. Its totient is φ = 140315076.

The previous prime is 142441109. The next prime is 142441171. The reversal of 142441129 is 921144241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142441129 - 211 = 142439081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142441097 and 142441106.

It is not an unprimeable number, because it can be changed into a prime (142441109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062927 + ... + 1063060.

It is an arithmetic number, because the mean of its divisors is an integer number (36141796).

Almost surely, 2142441129 is an apocalyptic number.

It is an amenable number.

142441129 is a deficient number, since it is larger than the sum of its proper divisors (2126055).

142441129 is an equidigital number, since it uses as much as digits as its factorization.

142441129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126054.

The product of its digits is 2304, while the sum is 28.

The square root of 142441129 is about 11934.8702967397. The cubic root of 142441129 is about 522.2500245765.

The spelling of 142441129 in words is "one hundred forty-two million, four hundred forty-one thousand, one hundred twenty-nine".

Divisors: 1 67 2125987 142441129